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Finding the Fourth Proportional to 43,901.88, 65,863.62 and 12,736.68

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Solution

The fourth proportional to 43,901.88, 65,863.62 and 12,736.68 is: 19,108.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,901.88 : 65,863.62 = 12,736.68 : x
  2. Step 2: Convert to fraction form
    43,901.88/65,863.62 = 12,736.68/x
  3. Step 3: Cross multiply
    43,901.88x = 65,863.62 × 12,736.68
  4. Step 4: Simplify right side
    43,901.88x = 838,883,851.58
  5. Step 5: Solve for x
    x = 838,883,851.58/43,901.88
  6. Step 6: Final answer
    x = 19,108.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.